Content-type: text/html Man page of setgroups

setgroups

Section: System Calls (2)
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NAME

setgroups - Sets the group access list  

SYNOPSIS

#include <unistd.h>

#include <sys/types.h> int setgroups (
        int gidsetsize,
        gid_t grouplist[] );  

PARAMETERS

Indicates the number of entries in the array pointed to by the grouplist parameter. Must not be more than NGROUPS_MAX, as defined in the limits.h header file. Points to the array that contains the group access list of the current user process. Element grouplist[0] becomes the new effective group ID.  

DESCRIPTION

The setgroups() function sets the group access list of the current user process according to the array pointed to by the grouplist parameter. This function fails unless the invoking process has superuser privilege.  

NOTES

Trial use  

RETURN VALUES

Upon successful completion, a value of 0 (zero) is returned. If the setgroups() function fails, a value of -1 is returned and errno is set to indicate the error.  

ERRORS

If the setgroups() function fails, errno may be set to one of the following values: The caller does not have the appropriate system privilege. The value of the gidsetsize parameter is greater than NGROUPS_MAX or an entry in the grouplist parameter is not a valid group ID. The grouplist parameter points outside of the allocated address space of the process.  

RELATED INFORMATION

Functions: getgroups(2), initgroups(3) delim off


 

Index

NAME
SYNOPSIS
PARAMETERS
DESCRIPTION
NOTES
RETURN VALUES
ERRORS
RELATED INFORMATION

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Time: 02:40:17 GMT, October 02, 2010